Milk intolerance following gastric operations with special reference to lactase deficiency.
D000818:Animals; D001706:Biopsy; D004796:Clinical Enzyme Tests; D004386:Duodenum / Q000201:enzymology; D005951:Glucose Tolerance Test; D006801:Humans; D007082:Ileum / Q000201:enzymology; D007413:Intestinal Mucosa / Q000201:enzymology; D007583:Jejunum / Q000201:enzymology; D007787:Lactose Intolerance; D008892:Milk; D011178:Postgastrectomy Syndromes / Q000201:enzymology* / Q000453:epidemiology